Tag：stage
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Introduction to Linux basic commands 13: startup process
firmware(Firmware) refers to the program code at the bottom of the device that allows the device to run. The simple understanding is: software fixed on hardware. Many devices in the computer have firmware (such as hard disk, mouse, optical drive, U disk, etc.), and the first thing to read is the firmware on the motherboard […]
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Brief introduction to the evolution process of “Peiyou call platform” system
preface We know that in a technical field, with the development of technology, the optimal solution is always changing. Similarly, a business system is the same. The business volume and business scenario from initial creation to undertaking are constantly changing. At different stages, the problems faced and the design idea of the system are also […]
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Encapsulation of phonebean entity class and setting of map output key value pairs
We wrote the bean type before. Now let’s look at the respective processes of map and reduce in this requirement. Map phase: After field segmentation, keep the following fields: take the first behavior as an example, keep the 13726230503112 2481 24681 field Encapsulate data into phonebean Set the phone number to keyout Set phonebean to […]
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After 3 years of working experience as a software testing engineer, who can “point and point” for a lifetime?
I am often asked about the future of software testing. Every year, I help many friends with career analysis and learning planning. I am glad that I can help some people enter big factories through my own efforts. Development status and future trend of software testing industry in 2021 Recently, when many testers are looking […]
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Front end interview – Summary of interview questions (updated on May 11, 2021)
Interview history of blood and tears Don’t ask me if I’m an architect. I’m just a low-level front-end. It’s not easy to sum up. Give it a compliment. css 1. GPU acceleration The full English name of GPU is graphic processing unit, which is translated into “graphics processor” in Chinese. Different from CPU, GPU is […]
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Unity rendering pipeline
Basic noun interpretation 3D object: an object composed of geometric shapes composed of triangles Vertex: a point with spatial coordinates and other meanings (color, texture coordinates) Texture: the image mapped to the surface of a 3D object, which provides the illusion that the object is composed of a certain material. The two-dimensional vector coordinates stored […]
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Event driven hotstuff protocol
Introduction to hotstuff Hotstuff is a BFT consensus agreement: Basic HotStuff ->Chained hotstuff // pipeline improves throughput ->Event driven hotstuff // safety and liveness are decoupled for simpler implementation A proposal proposed by the leader in basic hotstuff can only be submitted for execution at the following stages:Prepare -> PreCommit -> Commit -> Decide, the […]
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Smartbi: the development stage of enterprise data transformation
Enterprise data transformationStage 1: Excel stage This stage belongs to pure labor-intensive data analysis, and data analysts are also jokingly called “cousins and cousins” in the industry; Excel is indeed powerful, but its limitations in data analysis are also very obvious. When the amount of data reaches 50000 or 100000, it will be very stuck, […]
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Correlation filter for UAV based aerial tracking: a review and empirical evaluation
Title: overview and experimental evaluation of correlation filtering UAV air tracking technology Authors: Changhong Fu, Geng Lu Link:Correlation Filter for UAV-Based Aerial Tracking: A Review and Experimental Evaluation code:https://github.com/vision4robotics/DCFTracking4UAV?utm_source=catalyzex.com Paper PDF please get back to the official account [computer vision alliance] backtracking [object tracking review]. Aerial tracking is one of the most active applications in […]
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From distributed transaction resolution to Seata’s use, you can understand it in one shuttle
Hello, everyone. Welcome to Xiaocai’s personalsoloSchool, free knowledge, generous absorption! Pay attention to free, don’t hesitate to do it! This paper mainly introducesDistributed transaction If necessary, you can refer to If it helps, don’t forgetgive the thumbs-up ❥ The official account of WeChat has been opened.Small dish Liangji, students who don’t pay attention remember to […]
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Three implementations of Flink SQL extended dimension table key
background Flink lookuptablesource loads external storage data (dimension table data) by using the values of one or more columns of stream data, and then completes the field expansion of stream data. When the dimension table data changes infrequently, in order to improve the processing capacity of the system, the stream table data is usually cached […]
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[Java Virtual Machine Specification] JVM class loading mechanism
Author: threedayman Source:Hang Seng light cloud community Theoretical knowledge A type starts from being loaded into the memory of the virtual machine to unloading the memory. Its whole life cycle will go through seven stages: loading, verification, preparation, resolution, initialization, using and unloading. The three parts of verification, preparation and resolution are collectively referred to […]